Coke-drawer.



' No. mijn.

PATBNTED FEB. 24, 1903.'y 1 W. S. JUNES &"J. P. DONOHOE.

I COKE DRAWER. ABPLIOATION FILED JULY 1a, 1902.

4 BHBBTS-SHEBT 1.

N0 MODEL.

A TTOHNEKS.

No. 721,519. -PATENTED 1113.24', 1903. W. s..l JONES (if, J. P. DoNoHoE. COKE DRAWER. y

APPLIOATION FILED JULY 18, 1902. v

N0 MODEL. v 4 SHEETS-*SHEET 3.

A TTOHNEYS.

iro. 721,519.

. PATENTBD FEB. 24, 1903. W. s. JONES u J. 5901101101:. f

COKE DRAWER. .LP'rLloA'rIon rILnn JULY 1a, 1902.

4 sums-SHEET 4.

l S L20 Arme/vers.

TNESSESff "binrrnn 'STATES PATENT GFFICE.

WILLIAM s. JONES ANDl JOHN P. DONOHOE, OF GREENSBURG, PENNSYL- i VANIA.

COKE-DRAWER.

SPECIFICATION forming part of Letters Patent No. 721,519, dated February 24, 1903.

Application filed J'nly 18, 1902.

.To @ZZ whom it may concern.-

Be it known that we', WILLIAM S. JONES and JOHN P. DONOHOE, residing at Greensburg, in the county of Westmoreland and State of Pennsylvania, have invented a new and Improved Coke-Drawer, of which the following is a specification.

Our invention has forits object to provide a practical means forfacilitating the removal of coke from the ordinary-beehive ovens and render such operation more expeditious and economical than is possible inthe ordinary methods now employed for such' purpose.

The present common method of drawing coke out of ovens is by means of a scraper which is inserted through the oven and manipulated by hand. Our inventiongenerally seeks to accomplish the workof drawing the coke as nearly as possible in thesame manner as is now manually done-thatis, by'havin g a man do the work in the same manner as at present practiced, but in which he is mechanically aided in such manner that the heavy part of the work is mechanically effected, but under the direct supervision of' the operator.

Our invention comprehends a carriage held to travel in front of the coke-oven and includes a platform for sustaining the operator reciprocal in the longitudinal plane of the oven and which has a nose or extension adapt-y ed to penetrate through the oven-door and provided with means for-attaching the scraper and sustaining it in a position to be always under the control of the operator, whereby the said scraper can be set in the coke at the points desired and the L same be pulled by the outward movement of the platform to draw the heavy coke bunches out throng the oven-door.

In its more complete nature our invention y also includes, in connection with the mechanism generally before referred to, an lendless conveyer operated by the carriage-propelling motor or engine and adapted to receive the coke as it is drawn out of the ovenand to convey the same into a barrow, small car, or other receiver.

In its more subordinate features our invention embodies certain details of construction and peculiar combination of parts, all of Serial No. 116,059. (No model.)

fluid-controlled lever-shifting mechanism for reversing the movementof the platform. Fig. 5 is a side elevation of the foot-controlled valve for governing the fluid-operated mechanism. Fig. 6 is an end elevation thereof.v

Fig. 7 is a plan view of the same. Figs. 8 and 9 are sections thereof,l taken on the lines 8 8 and 9 9 of Fig. 5. Figs.`10, 11,'and l2 are detail views ill ustratin gthe scraper-bar hereinafter referred to.

In the practical construction our invention embodies a truck or carriage adapted to run in front of the oven upon a trackway, which extends the full-length ofthe nest of'ovens,

and the said truck includes a main frame formed of a pair of longitudinal I-beams l 1, that support two cross-beams 2 2, disposed at right angles to the beams l 1, and the said beams 2 2 carrya number of rollers 3 3, upon which the platform or carriage 4: 4 runs for the purpose presently explained. The support for the platform fl includes a rectangular` horizontal frame of I-beams 4a 4a, and the front end of said horizontal frame is narrowed to form a nose or extension 40, so as to readily enter the oven-door. (See Fig. l.)k At the center the platform-supporting carriage has a base or sheet-iron cage, the bottom of which forms the platform 4 proper and which is disposed near the ground in order that the operator may stand andwork as nearly as possible in the same manner as in the present practice of manually drawing the coke. The

vplatform-supporting frame is mounted on the beams 2 2 for reciprocal movement thereon, and it is worked 'by power, either steam, compressed air, or electrical. In the drawings we have shown a steam-power mechanism for operating the platform and its supporting- ICO frame therefor, said frame being held to frictionally engage the rollers 3 3, the parallel side beams of said frame having channelirons for engaging the said rollers, as clearly shown in Fig. 3; but, if desired, racks may be substituted for the channel-irons and the rollers be in the nature of gears for engaging the said racks. A number of the rollers 3.at each side (three being shown) work in unison, and eachset of three rollers at each side has a bevel-pin engagementwith the shafts 5 5X, and the said shafts each have a sprocket-gear 6, joined by the chains 6X with a connectingshaft 7, that runs under the platform 4, as clearly shown in the drawings, and all of the platform-operating gear devices before referred to are driven by a friction-wheel 8, mounted upon the shaft 5 and held to engage with either one of a pair of shiftable bevel, friction, or toothed gears 9 9, mounted upon the shaft 9X and controlled by a throw-lever 13, the said shaft 9X being provided with the gear 10, held in mesh with the main drivegear 11, as clearly shown in Fig. 1. The two bevel-gears 9 9 work together and run conltinuously one way, and the shaft that carries said gears 9 9 is shifted by the lever 13 to bring either one of the gears 9 9 into engagement with the friction-gear 8 or to be set out of engagement with the said gear when it is desired to hold the cage and platform at rest.

To provide for imparting motion to the cageplatform in reverse directions and for holding it at rest at will, we employ a fluid-controlled reversing mechanism for the lever 13, which consists ofa piston 14, mounted in the cylinder 14", (see Fig. 4,) with which asteam-pipe from the engine-boiler connects and which passes under the said cylinder 14a to the valve 16, as shown. The piston 14 has its rod 14X, movable in a guide 14C, and upon said rod is mounted two opposing springs 15 15, which work against the opposite side of the guide 14c and tend to keep the piston in the center of its cylinder and at the same time release the friction members 8 and 9 from each other. For conveniently controlling the movement of the piston 14 a foot-valve (designated generally by 16, see Figs. 6 to 9,) is provided, which is placed on the platform 4. The fluidpressnre is carried from the boiler to the valve and from the valve to the cylinder and from said cylinder back to the valve,through which it exhausts, the said valve being connected with the cylinder 14X by exible hose-sections, as clearly shown in Figs. 4 and 4. The footvalve, which is shown in section on two different planes in Figs. 8 and 9, has an inlet p', which communicates with a channel P in the rotary valve member PX, which channel extends up in a plane with the outlets p2 p3, (see Figs. 5 and 9,) and the latter join with the flexible hose-sections H H', that connect with the front and rear ends of the cylinder 14X. (See Fig. 4.) The valve member PX is also provided with an exhausting-pocket P5, having bifurcated branches to communicate with the outlets p2 p3 and a central branch p, normally held in communication with the exhaust channelp7 in the valvecasing,as clearly shown in Fig. 9. The Lipper end of the valve member PX has a foot-receiving socket p8. By providing a foot-controlled valve mechanism constructed as described it will be readily apparent that the operator can control the movement of the platform in either direction or hold it at rest at will and without interfering with the work he has to do with his hands. Thus should the valve PX be set as shown in Fig. 9 the same will be cut oi from the cylinder 14X and the piston 14 be balanced by the springs l5 and both bevel, friction, or toothed gears 9 and 9a be held out of mesh with the friction-gear 8. By shifting the valve PX in the direction of the arrow 10 (see Fig. 9) until the inlet p' registers with the outlet p2 an exhaust or vacuum will then be created in the piston 14 back of the valve or at that part marked Qc in Fig. 4,which part will then be in communication with atmosphere through the pipe H', the opening p3, and the exhaust through the valve PX and theexhaust-outletinthe valve-casing. Steam will then enter the cylinder and force the piston 14 in the direction indicated by the arrow 10x to swing the lever 13 in the direction of the arrow 10"', and thereby pull the gear 9L into engagement with the gear 8 and impart motion to the platform-carriage in one direction, it being obvious a shifting of the valves PX by foot movement in the opposite direction (see the arrow l07A in Fig. 9) will provide for exhausting from in front of the piston 14X and for the entrance of live steam back of the piston to shift the piston 14 to bring the gears 9 and 8 into mesh, and by shifting the valve PX back to the intermediate piston (see Fig. 9) both gears 9 and 9 will be freed :from the gear S, and the platform 4 will then be held at rest. i

An endless conveyer 18 is suspended from the ends of the beams 2 2, and this conveyer is run continuously by a belt 1S, driven from the engine-shaft, (see Fig. 1,) and said belt engages an idler 18h, by proper adjustment of which the belt may be stopped when desired. The conveyer 18 removes the coke as fast as it-is drawn from the oven and elevates it enough to load it into a wheelbarrow,or pref-` erably a small car, for readily conveying the coke into the shipping-car. The conveyer, which may be of any approved pattern, is preferably constructed of flat iron bars, sufijciently spaced apart to allow the ashes and ne coke-dust to screen out. The conveyer or elevator 18 has sheet-iron sides Yand includes an apron or incline 19 under the ovendoor to lead the coke-droppings onto the endless conveyer.

In operation the operator stands on the `platform 4 in front of the oven, and the main truck is blocked by a brake or otherwise from movement on its trackway. The operator places the scraper S (see Figs. 10, 11, and 12) IOO of the usual construction in the pivoted Y- bearing 20 on the front or nose end of the platform-.supporting frame and stands with his foot in the socket of the valve devices 16. The scraper is then pushed and caught into the coke withinv the oven and manipulated in the ordinary manner, the Y-'bearing acting as afulcrum upon which to oscillate the said scraper or fork, which, as will be noticed from the drawings, has a collar 2O to engage with the outside of the Y-bearing.'

After inserting the scraper into the coke, as described, the operator by foot movement shifts the valve 16' to effect a reverse or outward movement of the platform-carriage, and thereby produces a strong mechanical pull on the scraper, which drags the coke out through the oven-door onto the conveyor and by again properly manipulating the valve devices causes the platform-carriage to again approach the oven to penetratel the drag or scraperl into the coke, and so on. By using a bent scraper (see Fig. l2) the operator can easily reach the coke in the so-called corners7 of the oven (see the fillings marked C in Fig. l) and bring the same into position to be pulled out by the outward movement of the platform-carriage or, when the remaining coke bulk is small, by hand.

From the foregoing, taken in connection' with the drawings, it will be readily apparent in the practical application of our invention the operator stands before his oven in a similar way as when drawing coke by hand, uses the same kind of scraper devices, observes Where he is Working and what he is doing, can place the scraperjustwhere he wants it, and is sensitive to the touch thereof the same as when drawing by hand. He thus avoids catching too much coke and tearing up the oven-bottom and the door-jambs, all of which are very advantageous features in the art of drawing coke. He works the same as when he is drawing the same by hand, except that heis relieved of heavy work, and therefore can do much more work in a given time than by the ordinary method.

While the mechanism disclosed presents a practical and preferred construction of parts, itwill be understood that the exact details of construction and arrangement of parts may be modified or varied without departing from our invention or the scope of the appended claims.

Having thus described our invention, what We claim, and desire to secure by Letters Patent, is

l. A mechanical means for drawing coke, comprising a main frame, a support for the operator movable on the main frame to and from the oven, a scraper-holder mounted on said support, and adapted to pull the scraper out with it as the support is moved away from the oven, as set forth.

2. In a mechanism for drawing coke of the character described, a support for the operator movable to and from the oven, a pullbracket at the front end of said support, and y a scraper mounted in the said bracket for universal movement relatively thereto, said scraper having means for interlocking with the pull-bracket, whereby to move outward therewith, for the purposes specified.

3. In a mechanism for drawing coke, substantially as described, the combination with` the carriage for-impartinga reverse move.

ment to the said support'to and from the oven, and a foot-operated controlling device for regulating the support-operated means mounted upon the said support, and adapted to be manipulated by thel foot of the operator.

5. A mechanism for drawing coke, comprising a carriage including a support, means for moving the latter to and from the oven,

and a conveyor mounted on the carriage adapted to run 'under the oven-door, and means mounted upon the carriage for independently operating the support and the conveyer, as specified.

6. In a coke-drawing mechanism as described, the combination with the carriage, and a support for the operator mounted on the carriage, means for moving the latter to and from the oven, and a conveyer also mounted on the carriage, including a portion adapted to project under the discharge end of the oven-door, and an elevated portion for discharging the material, and means mounted on the carriage for operating the support and the elevator independently of each other.

7. A means for drawing coke, comprising a carriage movable transversely of the cokeoven, said carriage including a pair'of transversely-disposed rails, friction drive-pulleys mounted on the said rails, a supporting member mounted on the said rails, and including a pendent platform, a drive mechanism mounted on the carriage for imparting motion to the friction-pulleys, a controlling device mounted on the aforesaid platform under the'control of the operator, iiexible connections joining the said controlling device with the friction-pulley-operatin g drive mech- IOO IIO

anism, all being arranged substantially as l shown and described.

8. In a means for drawing coke, the combination with the main carriage, said carriage including a pair of transverselydisposed rails, a supporting-body including a pendent platform mounted on the said rails, and

`adapted to travel to and from the coke-oven door, a drive mechanism for imparting reverse motion to the said supporting-body, said drive mechanism including clutch devices, a fluid-operated means for shifting said clutch devices, a shifting-valve mounted on the platform-supporting body, adapted tO be controlled by the foot of the Operator, and exible connections joining the said foot- Operated valve with the Huid-operated mechanism for controlling the clutch-shifting devices, substantially as shown and described.

9. A coke-drawing mechanism, comprising a supporting-body movable to and from the Oven-door and in longitudinal alinement with the same, means for eecting such reverse motion of the body, a regulating device on the body under the control Of the operator for reversing the movement of the body, and a scraper-support mounted on the body, a scraper, said scraper being adapted to engage said support, said scraper having means for interlocking with the said support, all being arranged substantially as shown and described.

lO. In a coke-drawing mechanism as described, the combination with the main frame, a supplemental frame, transversely movable on the main frame, driving mechanism on the said frame for effecting a reverse motion Of the said supplemental frame, said supplemen tal frame including a platform for the Operator, a fluid -controlled shifting means for adj ustin g the drive mechanism to operate in reverse directions, a foot-operated valve mounted On the platform of the supplemental frame for setting the said shifting mechanism to its alternate Operative positions and to an intermediate or inoperative position, and flexible connections joining the said valve with the shifting mechanism, all being arranged substantially as shown and described.

WILLIAM s. JONES. JOHN P. DoNOr-IOE.

Witnesses to signature of William S. Jones:

COLVIN NESBETT, SAMUEL EcKLEs.

lVitnesses to signature of John P. Donohoe:

EDWD. E. DONOHOE, J. L. HOUSTON. 

